linux-kernel - Re: [PATCH] new irq tracer

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Message-ID: <20090218203053.GA17272@bombadil.infradead.org>
Date:	Wed, 18 Feb 2009 15:30:53 -0500
From:	Kyle McMartin <kyle@...radead.org>
To:	Jason Baron <jbaron@...hat.com>
Cc:	mingo@...e.hu, rostedt@...dmis.org, linux-kernel@...r.kernel.org,
	acme@...stprotocols.net, fweisbec@...il.com, fche@...hat.com,
	peterz@...radead.org, compudj@...stal.dyndns.org
Subject: Re: [PATCH] new irq tracer

On Wed, Feb 18, 2009 at 02:53:28PM -0500, Jason Baron wrote:
> hi,
> 
> I think this patch is useful in understanding irq system behavior, and
> for tracking down irq driver handlers that are firing too often or
> spending too much time handling an irq. This approach could be extended
> to the timer irq and for softirqs...
> 

Very cool, I had written something similar a week or two ago to debug
something but never had gotten around to posting it. :)

Looks like it works just as well too. Glad to see it.

cheers, Kyle
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